OBD-II Diagnostic Trouble Code
U0171
Lost Communication With Control Module “A”
U
Network
modules / CAN bus
modules / CAN bus
0
Generic
SAE standard
SAE standard
1
Network subsystem
71
Lost Communication With Control Module “A”
Severity · general guide
Moderate
Module communication fault
Code type
Jeep
System
Network
Model
Grand Cherokee
Years
2011